/*
 * Copyright 2020 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.compose.ui.test.selectors

import androidx.compose.ui.test.assert
import androidx.compose.ui.test.assertCountEquals
import androidx.compose.ui.test.hasTestTag
import androidx.compose.ui.test.junit4.createComposeRule
import androidx.compose.ui.test.onAncestors
import androidx.compose.ui.test.onFirst
import androidx.compose.ui.test.onNodeWithTag
import androidx.compose.ui.test.onParent
import androidx.compose.ui.test.util.BoundaryNode
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.MediumTest
import kotlinx.coroutines.test.StandardTestDispatcher
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith

@MediumTest
@RunWith(AndroidJUnit4::class)
class AncestorsSelectorTest {

    @get:Rule val rule = createComposeRule(StandardTestDispatcher())

    @Test
    fun threeAncestors() {
        rule.setContent {
            BoundaryNode(testTag = "NodeA") {
                BoundaryNode(testTag = "NodeB") {
                    BoundaryNode(testTag = "NodeC") { BoundaryNode(testTag = "NodeD") }
                }
            }
        }

        rule.onNodeWithTag("NodeD").onAncestors().assertCountEquals(4).apply {
            get(0).assert(hasTestTag("NodeC"))
            get(1).assert(hasTestTag("NodeB"))
            get(2).assert(hasTestTag("NodeA"))
        }
    }

    @Test
    fun threeAncestors_navigateUp() {
        rule.setContent {
            BoundaryNode(testTag = "NodeA") {
                BoundaryNode(testTag = "NodeB") {
                    BoundaryNode(testTag = "NodeC") { BoundaryNode(testTag = "NodeD") }
                }
            }
        }

        rule
            .onNodeWithTag("NodeD")
            .onAncestors()
            .onFirst()
            .onAncestors()
            .assertCountEquals(3)
            .apply {
                get(0).assert(hasTestTag("NodeB"))
                get(1).assert(hasTestTag("NodeA"))
            }
    }

    @Test
    fun noAncestors() {
        rule.setContent { BoundaryNode(testTag = "Node") }

        rule.onNodeWithTag("Node").onParent().onAncestors().assertCountEquals(0)
    }
}
